powerpc-darwin, skip ident tests.

The c-c++-common tests fail (or XPASS depending on which) on
powerpc Darwin because it doesn't currently emit .ident marker. 

Since there's no support for .ident in the assembler, we can't
enable the output and therefore these tests should be skipped.

2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>

	* c-c++-common/ident-0a.c: Skip for powerpc-darwin.
	* c-c++-common/ident-0b.c: Likewise.
	* c-c++-common/ident-1a.c: Likewise.
	* c-c++-common/ident-1b.c: Likewise.
	* c-c++-common/ident-2a.c: Likewise.
	* c-c++-common/ident-2b.c: Likewise.

From-SVN: r267394

gcc/testsuite/ChangeLog

+2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* c-c++-common/ident-0a.c: Skip for powerpc-darwin.
+	* c-c++-common/ident-0b.c: Likewise.
+	* c-c++-common/ident-1a.c: Likewise.
+	* c-c++-common/ident-1b.c: Likewise.
+	* c-c++-common/ident-2a.c: Likewise.
+	* c-c++-common/ident-2b.c: Likewise.
+
 2018-12-23  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/77703

gcc/testsuite/c-c++-common/ident-0a.c

 /* PR testsuite/52665
  * Make sure scan-assembler-not turns off .ident  */
 /* { dg-do compile } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int i;
 
 /* { dg-final { scan-assembler-not "GCC: " } } */

gcc/testsuite/c-c++-common/ident-0b.c

@@ -2,6 +2,7 @@
  * Make sure scan-assembler-not turns off .ident unless -fident in testcase */
 /* { dg-do compile } */
 /* { dg-options "-fident" } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int i;
 
 /* { dg-final { scan-assembler-not "GCC: " { xfail *-*-* } } } */

gcc/testsuite/c-c++-common/ident-1a.c

 /* PR testsuite/52665
  * Make sure scan-assembler turns off .ident  */
 /* { dg-do compile } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int i;
 
 /* { dg-final { scan-assembler "GCC: " { xfail *-*-* } } } */

gcc/testsuite/c-c++-common/ident-1b.c

@@ -2,6 +2,7 @@
  * Make sure scan-assembler turns off .ident unless -fident in testcase */
 /* { dg-do compile } */
 /* { dg-options "-fident" } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int i;
 
 /* { dg-final { scan-assembler "GCC: " } } */

gcc/testsuite/c-c++-common/ident-2a.c

 /* PR testsuite/52665
  * Make sure scan-assembler-times turns off .ident  */
 /* { dg-do compile } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int i;
 
 /* { dg-final { scan-assembler-times "GCC: " 0 } } */ /* internal test, keep -times 0 ! */

gcc/testsuite/c-c++-common/ident-2b.c

@@ -2,6 +2,7 @@
  * Make sure scan-assembler-times turns off .ident unless -fident in testcase */
 /* { dg-do compile } */
 /* { dg-options "-fident" } */
+/* { dg-skip-if "no assembler .ident support" { powerpc*-*-darwin* } } */
 int ident;
 
 /* { dg-final { scan-assembler-times "GCC: " 1 } } */